Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doan voi dac snippets" » "doan vi dac snippets", "doan gioi dac snippets", "doan tuoi dac snippets", "doan voi cac snippets", "doan voi dai snippets", "doan voi dan snippets", "doan voi dac slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("doan voi dac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan voi dac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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